INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21f535c17c612d31c94c1eb12ba02fda0e4e3c24fb76b880b65c4fbddff743d7', 
    'jn+d2OYLHM2H5rGPl03D3Tr7dowin+HfByqw6BteDsc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00017

Result

int(1)